9os

Experimental kernel using plan9 ideas for embedded device
git clone git://git.simple-cc.org/9os
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getc.c (109B)

      1 #include <stdio.h>
      2 #undef getc
      3 
      4 int
      5 getc(FILE *fp)
      6 {
      7 	return (fp->rp >= fp->wp) ?  __getc(fp) : *fp->rp++;
      8 }